Omega Engineering IOP-241 - Manual (Page 27)

5.4 Port C Interrupt Enable Register (Base + 5)
INT7 - INT0 may be enabled by writing the appropriate bits in the Port C Interrupt Enable
Register. The corresponding I/O channel must be configured as an input channel via the Data
Port C Control Register if an interrupt is to be generated. If an I/O channel is configured as
an interrupt source (INT7 - INT0), the I/O channel continues to be a standard data input
channel (DATA23 - DATA16) and may be read just as any other input signal is read.
1 = Enables INT0; 0 = Disables INT0 INT1EN 0
1 = Enables INT1; 0 = Disables INT1 INT2EN 1
1 = Enables INT2; 0 = Disables INT2 INT2EN 2
1 = Enables INT3; 0 = Disables INT3 INT3EN 3
1 = Enables INT4; 0 = Disables INT4 INT4EN 4
1 = Enables INT5; 0 = Disables INT5 INT5EN 5
1 = Enables INT6; 0 = Disables INT6 INT6EN 6
1 = Enables INT7; 0 = Disables INT7 INT7EN 7
Description Name Bit
Table 5-5. Port C Interrupt Control Register
IOP-241 Users Manual 27